Apache Arrow has a first-class tabular file format, Feather, that the Ray Datasets IO layer should support. Combined with Ray Datasets' existing .from_arrow() and .to_arrow() APIs, this would round out our "all-Arrow" experience, which should be as nice as possible given our "distributed Arrow dataset" positioning.

Implementation Note

Summary

mypy shows some issues in LightGBM's Python package.

mypy \
    --exclude='python-package/compile/|python-package/build' \
    --ignore-missing-imports \
    python-package/

python-package/lightgbm/compat.py:12: error: Name 'Series' already defined (possibly by an import)
python-package

Reporting a bug

• [X]

Motivation

When we use the deprecated KerasPruningCallback, it shows the deprecated warning to use tf.keras instead of keras. However, users cannot know our alternative callback of `KerasPruningCall

Version of Singularity:

3.0.3

Expected behavior

Some progress or update information during the creation of the SIF file.

Actual behavior

During "Creating SIF file..." step, the console does not produce any visible output for the user - but does create the resulting file eventually.

Steps to reproduce behavior

I was executing a few “larger” builds through the bui

This migration is a great first issue for an enthusiastic open source contributor who wants to get started contributing to ROOT with a well-defined task!

Introduction

RooFit needs to be migrated to use range-based loops to iterate over RooArgLists and RooArg Sets. The [deprecated iterator-creating functions](https://github.com/root-project/root/blob/master/roofit/roofitcore/inc/RooAbs

Please add the ability to connect to MongoDB via TLS when running as a docker service

Why is it needed? What is the value? For whom do we build it?

The ability to connect to MongoDB using TLS is is needed for someone who wants to run sorry-cypress as a docker service in a VM at Azure, using Azure's CosmosDB as the MongoDB server.

Azure's CosmosDB has a mongo front-end that I believe wou